diff --git a/src/ppc/interface-descriptors-ppc.cc b/src/ppc/interface-descriptors-ppc.cc
index 01d0150340..0fe70f2731 100644
--- a/src/ppc/interface-descriptors-ppc.cc
+++ b/src/ppc/interface-descriptors-ppc.cc
@@ -54,6 +54,11 @@ const Register MathPowIntegerDescriptor::exponent() {
 }
 
 
+const Register GrowArrayElementsDescriptor::ObjectRegister() { return r3; }
+const Register GrowArrayElementsDescriptor::KeyRegister() { return r6; }
+const Register GrowArrayElementsDescriptor::CapacityRegister() { return r5; }
+
+
 void FastNewClosureDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {cp, r5};
   data->Initialize(arraysize(registers), registers, NULL);